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Ares 10: GSM thermometer with web portal, e-mail and SMS alarms

Ares 10 is a cost-effective GSM thermometer for remote monitoring and alarming. Connect up to 3 external sensors (temperature, humidity, light intensity, ...) and 2 contacts (digital detectors). Use the free-of-charge portal to configure the Ares, send alarms or display graphs. Ares 10 GSM/GPRS thermometer is easy to install and can be used anywhere as long as there is GSM coverage.

HWg-Ares10 GSM is an effective solution for remote environment monitoring (temperature, humidity) over GSM without an internal battery. Environment monitoring over the mobile network (GSM) can be installed quickly and easily with the Ares; all that is needed is power and GSM coverage.

The two RJ11 ports can be used to connect 3 external 1-Wire or 1-Wire UNI sensors (max. 3 measured quantities in total). HW group offers temperature, light intensity, humidity, voltage, current (4-20mA) and other sensors.

Two digital inputs, IN1 and IN2 (green terminal block), can be used to connect simple status detectors (open/closed contacts). Relays of smoke detectors, open door detectors, water flood detectors etc. can be also connected to these inputs. States of detectors and sensors can be checked with a text message.

Alarm reaction can be as simple as sending an e-mail or a text message (SMS) whenever a contact is closed or a temperature exceeds the specified range. As a unique feature, after sending an alarm SMS (e.g. SMS temperature alert), the device can dial the target phone number and let it ring for a few seconds. Alarm status information can be sent to up to 5 phone numbers and 5 e-mails. More recipients can be reached by alarm escalation in the portal.

As an important advantage, with Ares 10 GSM alarm thermometer, sensor readings can be plotted in a chart and the device can be configured using the SensDesk online portal (free of charge service provided by the manufacturer). Another option is to display the graphs in HWg-PDMS (free software) which retrieves the values by e-mail.

  • Ares 10 is a simple GSM thermometer:
    The “HWg-Ares10 Tset” quick start set contains a temperature sensor, a universal power adapter and an external antenna.
  • Remote firmware upgrade (FOTA) capability simplifies management of large-scale installations with hundreds of devices.
HWg-Ares 12: GSM thermometer – 5 recipients for email and SMS alerts


Ares-10 photo 1   Ares-10 photo 2   Ares-10 photo 3

Montage plates 1   Montage plates 2  

Ares-10 set


Ares: GSM remote monitoring

Ares family

  Internal battery Digital inputs
(+ pulse counter)
(1-Wire / UNI )
Digital outputs
(external module)
Logger SMS alerts Email alerts
(HWg Push)
HWg-Ares 10 2 3
HWg-Ares 12 2 14
HWg-Ares14 As of 2017, the model is discontinued and replaced with Ares12.

Applications and usage examples

  • Remote temperature monitoring over GSM, temperature and humidity meter
  • Electricity distribution networks (transformer stations)
  • Water source monitoring, including technical equipment status
  • Agricultural production premises (greenhouses, granaries, etc.)
  • Concrete hardening
  • Road, highway, railroad technology
  • Temperature and thermal expansion of structures
  • Information systems (booths)
  • Diesel generators – environment monitoring
  • Wireless temperature monitoring system for telecommunication infrastructure
  • Remote server room monitoring without connecting to the local LAN
  • Automatic teller machines – environment monitoring without tampering with the ATM connection

Basic features

  • Sensors: Max 3 sensors (3 measured values)
  • Compatible sensors: 1-Wire / 1Wire UNI (RJ11)
  • What can be measured: Illumination, temperature, humidity, current 4-20mA, voltage 0-60V, Pt100/1000 temperature probe, water flood at a point (1D) or in an area (2D)
  • Digital Outputs (DO): None
  • Digital inputs (DI): 2 dry-contact inputs for external detectors
  • Pulse counting: S0 pulses can be counted at each DI
  • Response to alarm: Dialing a number, SMS (5 destinations), e-mail, HWg-Push
  • Configuration: Local – USB interface (Windows software does not need to be installed)
  • Remote configuration: Web interface in the portal – “AresConf” tab
  • Logging: Data attached to e-mail or downloadable over USB
  • Software: portal, HWg-PDMS, Nagios plugin, 3rd party solutions
  • Mobile app for displaying data: Android and iPhone (via
  • FOTA: Remote upgrade (Firmware Over The Air) capability simplifies management of large-scale installations with hundreds of devices
  • Temperature sensor: Included in the “Tset” start set. The cable can be extended to up to 60 m

  • 1-Wire UNI
    • Temperature
    • Humidity
    • Light intensity
    • 0-30A AC
    • Water flood
    • 0-60V DC
    • 0-20mA
    • Pt100 / Pt1000
  • Digital inputs
    • Smoke detector
    • 110/230V power detector
    • Air flow detector
    • Motion detector (PIR)
    • Water leak detector (1D)
    • Vibration detector
    • Open door detector
    • Gas leak detector
  • Mechanical: 76 x 93 x 28 mm, wall-mountable, fits on a DIN rail
  • Power supply: 9–30 VDC / 0.5 A external power
    • Internal battery: none
  • GSM/GPRS: Quad-Band 850/900 / 1800/1900 MHz - SMA antenna connector
  • Roaming: GPRS is deactivated when GSM roaming is detected
  • Diagnostics: External power detection, battery status [%]
  • Alarms: Email, HWg-Push, SMS
  • SMS + ring upon alert: Supported
  • Protocols: SMTP, NTP, HWg Push (http)
    • Authentication: STARTTLS (Google SMTP)
  • SMS communication: Basic control with status information
  • Support for programmers: HWg SDK
  • Supported software

First steps with the GSM/GPRS thermometer – Ares 12 Tset

SensDesk: Monitoring the Ares GSM unit via the web portal

  • In the Ares unit, configure your SensDesk account username and password.
  • Connect to to view the readings from sensors connected to your Ares.
  • SensDesk web portal can be used to configure Ares GSM units.
  • The SensDesk web portal supports both Ares products (Ares 10 and Ares 12).
  • SensDesk web portal can be used to control the relay outputs of the expansion module connected to the Ares unit.
  • SensDesk web portal can be used to send an alarm e-mail if the Ares unit or its GSM communication fails.




Mobile App

SensDesk Mobile app

  • All devices connected to your SensDesk account can be viewed in the SensDesk Mobile app.
  • The app is available for iOS and Android.
  • Sensors can be sorted by sensor name, device name etc.


PDMS: Data collection in MS Windows via E-mail

  • The HWg-PDMS software for MS Windows runs on a PC and downloads data from an e-mail account.
  • Ares GSM monitoring unit periodically e-mails the data to a dedicated e-mail account.
  • PDMS periodically downloads the e-mails and reads the data.

PDMS monitoring software

PDMS: Excel reportsHWg-PDMS periodically collects input states and sensor values from Ares units connected over GSM/GPRS and other Poseidon, Damocles and HWg-STE units connected over IP. Measured data are periodically stored into a database and exported as MS Excel reports.

  • Registered version is free of charge for three sensors
  • Collects data over IP (via an e-mail inbox)
  • Data collection runs in the background as a Windows service
  • Graphical overview of the collected data
  • Simple export to MS Excel (runs periodically in the background)

How to connect Ares to PDMS

  • 1) E-MAIL:
    Through the email interface. Ares sends e-mails to a dedicated mailbox, where PDMS periodically downloads them.
    PDMS processes e-mails with attached LOG files as well as alert messages.
  • 2) HWg-Push:
    HWg-PDMS is installed on a server with a public IP address. Ares periodically sends data from connected sensors over HTTP.

>> Ares & PDMS via e-mail


Ares-compatible detectors (most popular)

FDR26 Smoke Detector

Smoke detector (12VDC power, relay output)

Door Contact

Open door detector

Vibration detector Impaq

Vibration detector (12VDC power, relay output)

Gas Leak Detector

Detector of flammable gases (12V, relay output)


Power failure detector (relay output)

Motion PIR detector

Motion detector (12VDC power supply)

>> Overview of all sensors and detectors

Ares-compatible sensors (most popular)

Converter 2xPt100 1W-UNI

2x temperature (external temperature probes)

  • -200°C to +850 °C (-325°F to +1560°F)
  • Connect up to 2 Pt-100 or Pt-1000 temperature probes

Temp-485-Pt100 Box

Outdoor temperature sensor (RS-485 bus)

  • -25°C to +80 °C (-13°F to +175°F)

PHTemp-485 T7410

Temperature + humidity + atmospheric pressure + dew point
RS-485 bus

Expander 4xDI 1W-UNI

4x DI (dry contact input) to RJ11

  • RJ11 1-Wire UNI (needs 4 positions)
  • Designed for indoor use

HWg-WLD Relay

Detects flood in a 2D area using a cable

  • RJ11 1-Wire UNI (includes power)
  • Supplied with 2m detection WLD cable

Sensor 60V 1W-UNI

Measures voltage, 0–60VDC

  • Electrically isolated
  • Recommended for measuring –48VDC

30A Current probe 1W-UNI

0–30A AC current sensor for indirect measurement

  • 0-30A current measurement using a split-core transducer
  • Installation without disconnecting the measured circuit

Sensor Light 1W-UNI 3m

Illumination intensity sensor with a 3m cable

  • Indoor use
  • Output 0–100%

Sensor 4-20mA 1W-UNI

Measures 4–20mA DC current

  • Electrically isolated
  • Power for an external 4-20mA probe

HTemp-1Wire Outdoor 3m

Temperature + humidity (outdoor)

  • -30°C to +85°C (-22°F to +185°F) 
  • 0-100% RH   (Relative Humidity)

HTemp-1Wire 3m

Temperature + humidity (indoor)

  • –30°C to +80°C (–22°F to +175°F) 
  • 0-100% RH   (Relative Humidity)

Temp-1Wire-Flat 3m

Temperature (in coolers and freezers)

  • –30°C to +60°C (–22°F to +140°F) 
  • IP67, 17240 stainless steel probe – Ø5.7mm
  • Flat cable for installation in a cooler

Humid-1Wire 1m
Humid-1Wire 3m
Humid-1Wire 10m

Humidity (indoor)

  • 0-100% RH   (Relative Humidity)


Temperature + humidity (1U size for 19" rack mount)

  • -10°C to +80°C (+14°F to +175°F)
  • 0-100% RH   (Relative Humidity)

Temp-1Wire 1m IP67
Temp-1Wire 3m IP67
Temp-1Wire 10m IP67

Temperature (indoor and outdoor)

  • -10°C to +80°C (+14°F to +175°F) 

>> Overview of sensors


Frequently Asked Questions

    Ask for the price or details:
     - Web:  http://
    Country: *

    Spam protection. How many is SIX times six?

  • What is the difference between Ares10 and Ares12?
    The main difference is in the number of supported sensors (Ares 10 = 3 measured quantities / Ares 12 = 14 quantities) and the internal battery in Ares 12.
  • Can Ares 10 send an alert to power outage?
    Ares 10 does not have an internal battery. Therefore, it can send an alert when the power is restored; however, it cannot send an alert when the power is out. To send such an alert, use an Ares 12 unit which has an internal battery (or use a back-up power supply + voltage detection at the input).
  • Can Ares 10 detect the presence of 230VAC (e.g. the input voltage of an UPS)?
    Not in any simple way. It is best to use Ares 12 + PowerEgg2.
  • Can send an alert that the Ares unit has lost power?
    Yes. can detect a failure of communication from the Ares device and send an alert to communication failure within 30 to 60 minutes.
  • How many temperature/humidity combo sensors can be connected for temperature and humidity measurement over GSM?
    The Ares 10 GSM thermometer supports 3 sensors (measured quantities), Ares 12 supports 14 sensors (quantities).
    Ares 10 supports only 1 combined temperature/humidity sensor.
    Ares 12 supports up to 7 combined temperature/humidity sensors.
  • The humidity sensor reading oscillates around the specified SafeRange and I received over 50 e-mails in a single hour. What can be done about it?
    Set the hysteresis for this sensor to about 5% RH. This reduces the number of unnecessary alarm start / alarm end e-mails that would be sent a couple of seconds one after another.
  • How far can I connect the external sensors?
    1-Wire / 1-Wire UNI sensors: Max. 60 meters for each active port (RJ11 connector) at the Ares units.
    Some sensors may require additional power.
  • Ares 10 features two digital inputs for dry contacts (IN1-IN2). Is it possible to extend the number of DI inputs?
    No. It is not possible to connect more than two dry contacts to Ares 10.
  • Is it possible to connect the Ares 10 GSM thermometer to a cloud?
    Yes, Ares is a “cloud oriented sensor”. It can be connected to cloud systems as a “Cloud sensor”.
    Use the HTTP-based HWg-Push protocol. Contact us for details.
  • Where can I find the configuration software for Ares?
    The configuration software appears as the “ARESCONF.exe” file when the unit is connected over USB to a Windows computer.
  • Is it possible to download logged data over USB?
    Yes, the entire log file (data) can be downloaded over USB.
  • Can Ares 10 notify me when a contact is closed or opened?
    Yes, you can even assign names to contact states (e.g. tank full/empty). When the state changes, a SMS is sent to a maximum of 5 phone numbers.

  • Where can I find the prices of your devices?
    Ask our distributors, or request a quote directly from us using the form at this page.


How to order

Order item  
HWg-Ares12 set HWg-Ares 12 quick start set
Ares12 quick start set, contains a GSM QuadBand antenna + 3m cable, a universal power adapter (EU, UK, US), a CD, the Ares GSM unit (with an internal battery), a USB cable for configuration, a temperature sensor and a mounting bracket. - photo
HWg-Ares12 Bulk HWg-Ares12 with a mounting bracket
Ares12 unit (with the internal battery) and a type D mounting bracket. No other accessories.
HWg-Ares12 plain HWg-Ares12 unit only
Ares12 unit (with the internal battery) for GSM industrial monitoring. No other accessories. - photo
HWg-Ares10 set HWg-Ares10 quick start set
Quick start set with the Ares10, contains a GSM QuadBand antenna + 3m cable, a universal power adapter (EU, UK, US), a CD, the Ares GSM unit, a USB cable for configuration, a temperature sensor and a mounting bracket. - photo
HWg-Ares10 plain HWg-Ares10 unit only
Ares10 GSM thermometer unit only. No other accessories.
- photo
Mount plate E – 1U Mounting bracket for a rack, 1U installation of HWg-Ares, Poseidon2 3266/68 and other products. - photo
Mount plate D Bracket for attaching HWg-Ares, Poseidon2 3266/68 or other products to a wall. - photo
DIN Rail box set DIN rail mounting bracket.


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Sensdesk, gsm, celluar network temperature monitoring, temperature log, wireless temperature sensor, GSM remote monitor, GPRS remote monitoring, remote temperature sensor, temperature and humidity gsm meter


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